Currently I'm working on a project and I need to use Raspberry pi as a local network. In this project there are several devices that was built using Node-Mcu micro controllers, and also there is a web based data base and a web site which shows the data from those Node-Mcus. Currently what this project does is that, the Node-Mcus will directly upload their data to the web based database using wifi router as the connection point. But now what I need to do is that, I need to connect all the Node-Mcus to the raspberry pi via wireless connection and store those data in raspberry pi and from time to time raspberry pi should upload those data to the web based database using wifi connection from the router. I have searched through the internet and still couldn't find a suitable solution. Can this be done? and if it can, how to do it. Please help.